Markov models of codon substitution are powerful inferential tools for studying biological processes such as natural selection and preferences in amino acid substitution. The equilibrium character distributions of these models are almost always estimated using nucleotide frequencies observed in...

Teacher induction programs are designed to support new teachers and reduce teacher turnover. Comprehensive teacher induction, however, goes beyond traditional induction by relying on carefully selected and trained full-time mentors and also includes an intensive curriculum involving...

Background. The introduction of a new generation of atypical antipsychotic agents has raised difficult economic and ethical questions, particularly in lower-income countries. The reported tolerability and efficacy advantages of the atypical antipsychotics over their conventional predecessors...

Teacher induction programs are designed to support new teachers and reduce teacher turnover. Comprehensive teacher induction, however, goes beyond traditional induction by relying on carefully selected and trained full-time mentors and also includes an intensive curriculum involving...

Teacher induction programs are designed to support new teachers and reduce teacher turnover. Comprehensive teacher induction, however, goes beyond traditional induction by relying on carefully selected and trained full-time mentors and also includes an intensive curriculum involving...